#ifndef __RS485_H
#define __RS485_H			 
#include "air32f10x.h"	 								  
	  		  	
extern uint8_t RS485_RX_BUF[64]; 		//���ջ���,���64���ֽ�
extern uint8_t RS485_RX_CNT;   			//���յ������ݳ���

#define BITBAND(addr, bitnum) ((addr & 0xF0000000)+0x2000000+((addr &0xFFFFF)<<5)+(bitnum<<2)) 
#define MEM_ADDR(addr)  *((volatile unsigned long  *)(addr)) 
#define BIT_ADDR(addr, bitnum)   MEM_ADDR(BITBAND(addr, bitnum)) 
//IO�ڵ�ַӳ��
#define GPIOA_ODR_Addr    (GPIOA_BASE+12) //0x4001080C 
#define GPIOB_ODR_Addr    (GPIOB_BASE+12) //0x40010C0C 
#define GPIOC_ODR_Addr    (GPIOC_BASE+12) //0x4001100C 
#define GPIOD_ODR_Addr    (GPIOD_BASE+12) //0x4001140C 
#define GPIOE_ODR_Addr    (GPIOE_BASE+12) //0x4001180C 
#define GPIOF_ODR_Addr    (GPIOF_BASE+12) //0x40011A0C    
#define GPIOG_ODR_Addr    (GPIOG_BASE+12) //0x40011E0C    

#define GPIOA_IDR_Addr    (GPIOA_BASE+8) //0x40010808 
#define GPIOB_IDR_Addr    (GPIOB_BASE+8) //0x40010C08 
#define GPIOC_IDR_Addr    (GPIOC_BASE+8) //0x40011008 
#define GPIOD_IDR_Addr    (GPIOD_BASE+8) //0x40011408 
#define GPIOE_IDR_Addr    (GPIOE_BASE+8) //0x40011808 
#define GPIOF_IDR_Addr    (GPIOF_BASE+8) //0x40011A08 
#define GPIOG_IDR_Addr    (GPIOG_BASE+8) //0x40011E08 
 
//IO�ڲ���,ֻ�Ե�һ��IO��!
//ȷ��n��ֵС��16!
#define PAout(n)   BIT_ADDR(GPIOA_ODR_Addr,n)  //��� 
#define PAin(n)    BIT_ADDR(GPIOA_IDR_Addr,n)  //���� 

#define PBout(n)   BIT_ADDR(GPIOB_ODR_Addr,n)  //��� 
#define PBin(n)    BIT_ADDR(GPIOB_IDR_Addr,n)  //���� 

#define PCout(n)   BIT_ADDR(GPIOC_ODR_Addr,n)  //��� 
#define PCin(n)    BIT_ADDR(GPIOC_IDR_Addr,n)  //���� 

#define PDout(n)   BIT_ADDR(GPIOD_ODR_Addr,n)  //��� 
#define PDin(n)    BIT_ADDR(GPIOD_IDR_Addr,n)  //���� 

#define PEout(n)   BIT_ADDR(GPIOE_ODR_Addr,n)  //��� 
#define PEin(n)    BIT_ADDR(GPIOE_IDR_Addr,n)  //����

#define PFout(n)   BIT_ADDR(GPIOF_ODR_Addr,n)  //��� 
#define PFin(n)    BIT_ADDR(GPIOF_IDR_Addr,n)  //����

#define PGout(n)   BIT_ADDR(GPIOG_ODR_Addr,n)  //��� 
#define PGin(n)    BIT_ADDR(GPIOG_IDR_Addr,n)  //����


//ģʽ����
#define RS485_TX_EN		PBout(14)	//485ģʽ����.0,����;1,����.
//����봮���жϽ��գ��벻Ҫע�����º궨��
#define EN_USART3_RX 	1			//0,������;1,����.

void RS485_Init(uint32_t bound);
void RS485_Send_Data(uint8_t *buf,uint8_t len);
void RS485_Receive_Data(uint8_t *buf,uint8_t *len);

#endif	   

